40850000

素因数分解:

$2^4\times 5^5\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:95

約数の個数: 120

約数和(自身を含む): 106555680

約数和(自身を除く): 65705680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 43, 50, 76, 80, 86, 95, 100, 125, 152, 172, 190, 200, 215, 250, 304, 344, 380, 400, 430, 475, 500, 625, 688, 760, 817, 860, 950, 1000, 1075, 1250, 1520, 1634, 1720, 1900, 2000, 2150, 2375, 2500, 3125, 3268, 3440, 3800, 4085, 4300, 4750, 5000, 5375, 6250, 6536, 7600, 8170, 8600, 9500, 10000, 10750, 11875, 12500, 13072, 16340, 17200, 19000, 20425, 21500, 23750, 25000, 26875, 32680, 38000, 40850, 43000, 47500, 50000, 53750, 59375, 65360, 81700, 86000, 95000, 102125, 107500, 118750, 134375, 163400, 190000, 204250, 215000, 237500, 268750, 326800, 408500, 430000, 475000, 510625, 537500, 817000, 950000, 1021250, 1075000, 1634000, 2042500, 2150000, 2553125, 4085000, 5106250, 8170000, 10212500, 20425000, 40850000]

約数ペア:

[(1, 40850000), (2, 20425000), (4, 10212500), (5, 8170000), (8, 5106250), (10, 4085000), (16, 2553125), (19, 2150000), (20, 2042500), (25, 1634000), (38, 1075000), (40, 1021250), (43, 950000), (50, 817000), (76, 537500), (80, 510625), (86, 475000), (95, 430000), (100, 408500), (125, 326800), (152, 268750), (172, 237500), (190, 215000), (200, 204250), (215, 190000), (250, 163400), (304, 134375), (344, 118750), (380, 107500), (400, 102125), (430, 95000), (475, 86000), (500, 81700), (625, 65360), (688, 59375), (760, 53750), (817, 50000), (860, 47500), (950, 43000), (1000, 40850), (1075, 38000), (1250, 32680), (1520, 26875), (1634, 25000), (1720, 23750), (1900, 21500), (2000, 20425), (2150, 19000), (2375, 17200), (2500, 16340), (3125, 13072), (3268, 12500), (3440, 11875), (3800, 10750), (4085, 10000), (4300, 9500), (4750, 8600), (5000, 8170), (5375, 7600), (6250, 6536)]